Using this duvet cover set is easy. First, find a comforter insert that fits the size of your duvet cover (it's not included in the set). Then, open the button closure on the duvet cover and slide the insert inside. Use the corner ties to secure the insert so it won't move around. When it comes to maintenance, you can simply toss it in the washing machine as it's machine - washable. Just follow the normal washing instructions for cotton products. Remember, since it's OEKO - TEX certified, it's made without harmful substances, so you don't have to worry about any harsh chemicals affecting your sleep. Enjoy the cozy and stylish look it brings to your bedroom all year round.